Burial caskets



R. W. GILLISON BURIAL CASKETS Aug. 26, 1958 4 Sheets-Sheet 1 Filed June 2, 1955 R O T N E ...v m

Robert m Gll'ison ATTORNEYS Aug. 26, 1958 R. w. GlLLisoN BURIAL CASKETS 4 Sheets-Shea?l 2 Filed June 2, 1955 INVENTOR l Robert TV. Gillison y BY E *v i ATTORNEYS 2 llllllll f.

Aug- 26, 1958 R. w. GILLISON I 2,848,782

BURIAL CASKETS 4 Sheets-Sheet 3 Filed June 2, 1955 Robert 7V; Gill-son BY' #7kg 57,

ATTORNEYS Aug. 26, 1958 R. w. GILLlsoN BURIAL CASKETS 4 Sheets-Sheet 4 Filed June 2. 1955 United l States Patent O BURIL CASKE'TS Rnb'ert Gillson; RockyfR'iver, OhioI ApplicationJune25.71955;Serial No. 51272'8.r

l'lzcl'ails (C12 2li-17) i' The present invention. relatesto. a: sealing: means for burial casketsv or. the' like: and more.. particularly. to a casket seal. which. may, be. inated.. with a. fluid under pressure.

Thisl application is a-.continuation-.in-:part `of my: copend.- ingfapplication Serial No. `438;968,f1led. Iune-24, 19.5.4, and entitled Burial Casketsgnowabandoned..

According to the -presentinvention,. a exible dilatable and self-conforming sealing tube or gasket of .substantially rectangular cross sectionis providedibetween the lid-and main bodyfportions of a casket-o1' coffin -to.provide. an airtight seal. Where asectionalilidV is provided, aportion lof the sealing tube is Yinserted fb'etweenscontiguoussections of ithelid Vto prevent :leakage of air .orlliquid-.,therebetween whereby al corpse may-be protected a-gai-nstthe entry of air orforeignmaterial into the como'.

The sealing tube may be lled with fluid under pressure Y and dilated in 'any suitable-mannersoasfto compressthe top 1 and fb ottom' walls ofl the tube-.and provide. anfair-tight seal; Althoughnainand other gases have thei advantage of being compressi-ble;v it iis preferable'to fill the sealing tube with' a self-.sealing liquid; In order to-maintainaneffectivey seal: for the. maximumz period of-.tirne,` a pressure should be` maintained `on:theliquiclfatall times. According to the present invention a f pressurizable I reservoir. is provided inf thewcask'et thatV communicates with; the:interior of the: sealing tube-` and that: containsfatsuita'ble liquid. Any suitable meansimaygbeeprovided,toapplya biasing-:pressure to thel'liquid: ina the.:reservoir.` so as to maintainawpressure'ion the liquidin thefrsealing.,tube;but it is often preferable-to employfa.A compressed ngasfin. the reservoir tomaintainthe neededpressure.:

A releasable lockingmeans'lmay;beprovided-.forfholdf ing: the: casket.l lid in i closed :position s and .for permitting opening'and closingz'of the-:lid before. th'e zcasketfisfseaied. Such. locking: means preferably comprises reciprocable bolts which slide into and out of keeper'sir. After" the lidiis: closed landthe::bolts :aremoved tojockng; position, liquid'under pressure may beappliedtozthe sealingstube to seal the casket. The'forceresultingffrom thefpres'- sure-,tends toxopen thevlidgibut rthellolts 'enga'gefthe keepers to limit :the` openingm'ovementr solthat the; sealing tube is compressed againstithe lidfandithbodyfof thezcasket to providean air-tight seal..

In order to providelaztheftproof casket; it is Yofterrprefrerableito provide means to ipreventzopeningfof:the'fcasket afterzit-is'sealed under pressures. Any'sui'tabiemeans may be providedto 'prevent'movement'of the '.boltssoutof .the keepers `or tok preventtunlockngi offtheacasket l:afterfpressure isapplied to' the Lliqui'd in 4the'sealixig;tube 'cto -seafl the casket; such'm'eans preferablyfbeing' operable auto'f matically inV response.r to 1 saidipressure to Ylock'the' .bolts Lin position. It is preferable to obtain suclrrlocking of fthe casket by designing theboltsand keepers so'that liquid pressure in the sealing tube forces th'ekeepers andthe bolts together and prevents'movementof-'the boltsoutfof the keepers.` Suclrra-fresultmay be accomplished;y for 2i. examplauby providing the keepers with sharp edges for gripping the bolt or by providing the bolts with notches or soft portions that are deformable to receive the keepers.

Since it may be desirable to open the casket after it has been sealed, particularly if a corpse is shipped a long distance before the funeral, itis sometimes preferable to provide a pressurizing means for` the sealingtu'oe of the casket which can apply and release the pressure on the iuiclin` said tube. Such pressurizing means may,V for example,l be intheform of a reciprocable fluid pump in the casket that is operated by a handcrank or the like to increase or decrease the pressure on the uid in the sealing tube.v

A1 primary object of the present invention-iste provide a simple and economical seal for effectively sealing a cofn o1'- casket.

A-Y further object of the invention is to provide a sealed casket which-is theft-proof after sealing but which may be yopened and closed before sealing.

A-. still. further object of the invention is toA provide a sealing! tube or gasket which applies'a uniform sealing pressure around the entire margin of a casket even where the abutting parts to be sealed are unevenly spaced.

Another object ofthe invention is toprovide aV convenient' means for controlling the application of liquid pressurelto Ya casket seal andy for maintainingsaid-pr'essure indenitely.

A further object of the invention is toprovidean improved meansfor attaching suitable decorations' or' uplholsteryy to a casket.

Other objects uses and advantages of the': present invention will become apparent'from the followingzdescription andfrom'the drawings, in which:v

Figure-lis a'perspective view on a: reduced scale of a casket embodying the present invention;y

Fig, 2 is a'sideelevational vieW ona largeriscaleof the casketshown inFig. 1;

Fig. 3 isa\4 fragmentary sectional View ofthe' casket takenfsubstantially on the line indicated at`3'-3in'Fig 2;

Fig. 4 is a fragmentary side View of the lockingmechanism'usedin the casket shown in Figs: 1fto'3 but on a largerscale with parts broken away and shown insection, the. positionrof the parts when the bolts are fully retracted beingashown 'in dotted lines;

Fig; 5 'isa fragmentary vertical. sectionV taken substantially'on'the lineindicated at 5 5 in Fig; 4'andf on a 1arger=scale Fig'. @isla-fragmentary vertical sectional View taken substantially. on the line indicated at`6'-6 in' Fig?. 4'and Orr-thefsamescale as Fig. 5;

Figi.7isa1fragmentary top view of themain body portion of the casket shown in Figs. l to 6;

Fig; 8 is 'a fragmentary vertical sectional View taken substantially' on the line indicated at 8-8 iin'Fig. 7

Fig:l 9ris afragmentary vertical sectional View of the bolt and keeper employed in the device' of Fig.l 4I on a larger.scale"and withV parts broken away and shown in sectiong.

Fig..:10'isl a-perspective View of thev sealingtube employed'inthe'casket of Figs. 1 to 8;

Fig;` lllis a fragmentary sectional View of a modified formfoffsealing tube Which maybe employed in a casket oflthe 'type shown in Figs. l to 8, the position of the Vtube Whensuppliedwith kfluid under pressure beiug'shown in dot-'dash lines;

Fig." 12 -is afragmentary top plan View of a modified form of 'casket similar to the casket of Figs. l to 9'but having-iaidiiferent'means to supply uid to the sealing tube-:andtoj maintain pressure on the fluid, thesealing tubebieingigshown'substantially in its entirety;

Figa 13..is;a1fragmentary vertical sectional view'taken i substantially on the line one of the contiguous lids being shown in dotted lines; Fig. 14 is a fragmentary vertical sectional view taken substantially on the line indicated at 14-14 in Fig. 12;

Vview taken substantially on the line indicated `at 17-17 of Fig. 15 and on a larger scale; and Fig. 18- is afragmentary vertical sectional view similar to Fig. 17 and showing how the upholstery may be draped over the sealing tube when the casket lid is opened. Y Y

Referring more particularly to the drawings in which like parts are identified with the same numerals throughout the several views, Figs, 1 to 9 show a casket or coffin having upstanding side and end walls -1 and 2, respectively, and a bottomwall 3 forming an elongated rectangular receptacle for receiving a corpse. VSaid walls form the main body portion 4 ofthe casket which is shown herein as being constructed of sheet material. A hollow molding of sheet material is provided along the entire upper margin of the body portion in the form of peripheral channel members 5 which are rigidly connected to said side and end walls 1 and 2. lf desired, a' similar peripheral molding 6 may be provided at Ythe bottom margin of thek casket by forming the side and end walls sothat the lower portions project outwardly. Rigidly connected to the side walls 1 on opposite sides of the casket are conventional lifting bars 7.

VThe upper'portion of each molding member 5 is flush ,with the top of the body portion Vof the casket and is formed to provide a continuous recess preferably of sub# stantially rectangularcross section in its top face.` The recesses in the members 5 extend'around the entire periphery of the casket tor'provide an endless marginal groove kor vchannel 8 for receiving a sealing tube or gasket. v

A one-piece lid ,or any other suitable lid may be provided for the casket, but as herein shown a sectional lid is employed having two independently movable. closure members for sealing the casket. As shown, the casket is provided with two separately movable contiguous lids 9 and 10 of substantially identical construction. Each lid is preferably arched in cross section substantially as shown in Fig. 3, and, like the body portion 4 may be constructed of sheet material. The lids 9 and 1 0 have iiat vertical abutting endfaces 11 and 12, respecy.tively, yin engagement with each other and at bottom marginal surfaces 13 and 14, respectively, which Vare adapted to closely overlie the flat marginal surface of `the bodyportion 4 throughout its length. The vertical end face 12 of the lid 10 is provided with an arched groove or channel 15 which, as herein shown, has substantially the same width and depth as the marginal channel 8 and which registers at its opposite ends with said last-named channel when the lid is closed.`

The channels 8 and 15 provide recesses or grooves for receiving a continuous flexible and dilatable sealing tube 16 as best shown in Fig. 10. Thev tubek is preferablyV endless and comprises a substantially rectangular marthe marginal portion 17 so as to receive fluid therefrom. Fluid is supplied to lall portions of the sealing tube through an inlet connection V19 placed in any suitable or convenient location. The connection 19 may project through the side or bottom of the chanel 8. It will be understood that the intermediate portion 18 will be omitted when a one-piece lid is employed.

The lids 94 and 10 may be hinged to one side of the body portion `4 in a conventional manner and may be detachably secured to the opposite side of said body portion by a suitable lockingV means or the like so that the lids are held in closed position when iluid under pressure yis forced into the sealing tube 16. As herein shown, each ofthe abutting lids is pivotally connected to the rear of the body portion 4 by hinges 20 and is adapted to be held in closed position by a key-operated Y locking mechanism 21 located Within a longitudinal moldginal Vportion 17 of a size to t'the channel 8 and an archedl integral intermediate portion 18 of a size to fit the channel 15. Each of said portions is hollow through- Vout its length to provide a uid passage and is preferably ing member 5 on the front side of the casket. Each of the locking" mechanisms 21`is shown in closed position i in Fig. 4 and comprises a' pair of locking boltsk 22 which are moved in opposite directions into and out of a pair of keepers 23 by means of a key-operated actuating mechanism including a spur gear 24 and a pinion 25 having teeth meshing with the teeth of said gear. Each gear and pinion is supported inside the molding member 5 by aU-shaped .upright supporting 4member 26 and is mounted for rotation about fixed parallel axes perpendicular to the side walls 1. The opposite rends of the sup; porting memberv are rigidly Asecured tothe molding member 5 by welding or inV any other suitable manner. The

pinion 25 is provided with an integral stub shaft 28Vy having anv end which projects through a circular opening 29 in the molding member 5. `The end of said shaft is provided with a slot 30 `whichreceives a'key for rotating the gear V24. l

Each `pair of bolts 22 isv pivotally connected to one of the gears 24 by a pair of cylindrical pins 31 which are received in a pair of diametrically-opposed cylindrical holes in the gear. The outerend of each locking bolt is directed ltoward a keeper 23 bya guide member V32 which is rigidly connected to the top horizontal portion of the molding member ,5 adjacent a keeper 23. Each guide member is positioned between'the keeper and the spur gear to support its associated boltin alinement with a bolt-receiving opening inl the keeper when the bolt is fully retracted out .of the keeper.

As herein shown, a plate or-strap 33 is interposed between the attaching portion of each guide member 32 and the molding member 5.y Each strap is rigidly connected to the molding .member and has an intermediate portionwhich is yengageable vwithithe top surface of a bolt 22 to limit upward movement thereof. Said intermediate portion 'is yprovided with a slot for receiving the keeper and forholding the keeper in alinement with its associated bolt. y t

Each keeper-23 is attached tov one of the lids 9.r and 10 in any suitabley manner and projects downwardly through small-openings Vin the lid and the molding of the keepers projectare completely' sealed by welding or in l any other leak-proof manner so that air cannot leak into the casket through openings around the .-keepers.

The four keepers 23 are .provided with slots or openings 35 shaped to receive the locking bars or bolts 22. Each opening 35 lhas a bottom surface 36,which is engageable with thev bottom surface of a bolt 22 to limit upward movement -of lthe lid andl downward movement of the bolt when'the casket is closed. j When the Ysealing tube 16 is collapsed andthe lids 9 and 10 are fully closed and in engagementv with the at upper'surfaces of the moldingmembers 5, the bolt engagingsurface. 36 of each-keeper isgspaced from the bottom bolt-engaging surface of a strap 33 aV distance slightly greater than' the maximum height of thef portion of the bolt engaging saidsurfaces so that suicient clearance is provided to move the bolt into and out of the keeper by rotating the pinion 25 and the. gear 24. This clearance is very small but sufficient to permit locking ofthe lids in closedl position and unlocking thereof before the casket is sealed. It will be understood that the bolt and keeper may be designed to minimize the clearance necessary for proper functioning of the casket.

Whenv the casket is sealedby applying liquid or other fluid under pressure to the sealing tube 16', the lids are moved slightly upward until the four bolts 22'are wedged between the straps 33 and the surfaces 36 ofthe keepers 23. The original clearance provided to permit locking and unlocking of the casket therefore results in a similar clearance between the bottom of the lids and the top of the casket body when the casket is sealed asshown in Fig. 6.

As shown in Fig. 6, the sealing tube-16 is substantially rectangular in cross section when subjected to liquid pressure and forced into sealing engagement with` the lid and body portions of the casket. The. top wall of the tube has a thickness throughout its length preferably several times the maximum clearance between the lids and the body portion of the casket so that the tube walls are under compression when the casket is sealed. Compressionof the rubber-like material-of. the sealing tube assists in preventing. leakage of fluid. through the pores of the tube. As hereinrshown thessealing tubeis` shaped so that it conforms tothe channelsS and 'and. sealingly engages the bottoms of said channels throughout their lengths when the casket is` sealed; As. herein shown, a large area of contact is provided betweenthe sealing tube and the lids andbetween said tube and the channels therefor so as to insure agood seal.

It will be understood that the sealing tube may have a cross-sectional shape when pressurizedl substantially as shown in Fig. 6 throughout its; length. It will bevnoted that a tube of rectangular cross section tends-to become circular when the tube is pressurized internallyy but that a circular cross section is not attained since the bolts and keepers limit upward movement of the` lids and prevent kthe height of the. sealingtube from' approaching the diameter of such a circular' section.

It will also be noted that the uid in the sealingitube applies a uniform. pressure tofall surfacesl engaging the tube even where the clearances between the casketbody and the lid or between the lids-are unequal. If necessary the tube can dilate more at one corner of a 1id` than at another so as to provide an. effective seal where the clearances are non-uniform.`

Since the bolts are tightly wedged between the straps 33 and the surfaces 36 of the keepers 23 when the casket is sealed under pressure, a large force is required to slide the bolts out of locking position so as toopen the lids 9 and l0. It may be preferable to make the casket theft-proof so that it cannot be opened' after it is sealed, but it may at the same time be preferable to construct the bolts and keepers and the other parts ofi the locking mechanisms 21 so that the casket can-be locked and unlocked before the casket is sealed;

One method of permanently locking the casket isto render the actuating mechanism for the bolts inoperative after the casket is sealed or in response to the application of pressure to the sealing tube. As herein shown, the shafts 2S and/or the pinions 25 are made of ai frangible material or a soft deformable metal such` as lead and are constructed so that they can apply sufficient force to rotate the spur gear and move theA bolts out of the keepers before liquid-under pressure isapplied to the sealing tube or gasket butare unable to perform such actions when the bolts` are wedgedr against' the keepers by the pressureV of` said liquid.l

In order to 'insure-'thatthe spur gears cannot be rotated by inserting keys into thejslots 30 after theV casket is catching on the edge of the notch before the casket is sealed. As herein' shown, each notch 37 is lled witha soft material 38 which is not deformed by the weightV of a bolt or by the normal forces exerted by the: keeper against the surface before sealing of the casket..

The material 38 providesv each bolt'22 with asmooth lower surface to permit sliding of the bolt into and out ofthe keeper, but when the sealing tube 16 isv pressurized to seal the casket this material may be deformed by the surface 36 of the keeper so that the keeper enters the notch'37. Thereafter the bolts cannot be moved out of the keepers by the pinions 25; or the' spur gears 24 and the lids cannot be opened.

If desired, the keepers 23 or the straps 33 may be provided with sharp projections or sharp edges which dig into the bolts 22 when the casket is sealed under pressure. AsV herein shown, the surfaces4 36 at the bottom ofthe bolt receiving openings in the keepers are inclinedv to provide sharp edges 39 for deforming the soft-lead or other material in the notches 37 in responseV to the applicationof liquid under pressureito the sealing tube 16.

Suitable means is provided to supply liquid to the sealing tube and to maintain av pressure lon theliquid indefinitely. Such means may include an energy-storing de'- vice, such as an accumulator. Asherein shown this pressure is maintained by means of an accumulator inthe form of a pressurizable tank or reservoir 40' whichis partially filled withV liquid and which contains a gas trapped above the liquid. The gas is.compressed in the reservoir and is adapted to expand so as to maintain the pressure needed fora permanent and'effective seal. A liquid conduit 41 has an open end located in tlie'liqu'id in the reservoir 40 and communicates with the interior ofthe sealing tube 16 to supply uid under pressure to the portions 17 and 13 of the sealing tube.

The reservoir itlA and the conduit 4l may belocated'in any convenient location within the casket and may be connected to the sealing tube atk anysuitable location. However, it is usually preferable to provide the liquid pressurizingA apparatus with valve means which can be readily operated manually to initiate automatic dilation of the sealing tube and automatic sealing ofthe casket so that the casket may be sealed with minimum effort and in a minimum time. i

ln-the embodiment of theV invention shown in Figs.v l to lt), the reservoir 40 rests onltheV bottom wall 3 lof the casket and is held in fixed position against an end wall 2 by a clamp 42 with the upper end thereof near the inlet connection i9 of the sealing tube. The conduit 41 is held in vertical position in the tank 4t) with'its lower end well below the lowermost level of the liquid and is co-nnected at its upper end to the inlet end of a manuallyoperated leak-proof shut-off valve 43.' `Connected tothe outlet of the valve is a short flexible conduit i4 preferably of small internal volume which is connected at its upper end to the inlet i9 to convey liquid flowing through the valve from the tank 4tlto the sealing tube 16. The valve is opened and closed by means of an actuating rod or member 45 which projects through an opening 46 in the end wall 2 so as to be accessible from outside the casket. Leakage of Huid between-the body of the valve and the actuating'member 45 yis prevented by suitable sealing means including a packingnut i60.

in Fig. 8.

"7 Any suitable means may be provided to prevent leakage of -air through the opening 46 to the interior of the casket. As herein shown, the body of the valve 43 is provided with an integral ange 61 having a diameter greater than that of the opening 46. Leakage between the flange and the casket wall through the opening 46 may be prevented by welding the entire marginal portion of the ange to the wall or by employing a suitable seal- The tank 4t) is originally filled with liquid up to level A as shown in dot-dash lines in Fig. 8 and the gas above the liquid is compressed to a predetermined initial pressure at which time the valve 43 is closed so as to maintainvsaid initial pressure and to prevent leakage out of the tank. A Vvacuum pump is connected to the inlet 19 of the sealing tube to collapse the tube and to remove ksubstantially all air from the sealing tube whereby a vacuum is produced. Then the conduit 44 is connected to the inlet 19 while the vacuum is maintained so that an air-tight connection is made between the sealing tube 16 and the tank 49. Thereafter, whenever it is desired to seal the casket the lids are locked closed and the actuating member 45 is rotated by hand or a suitable tool to open the valve 43. As soon as communication is established between the tank 40 and the sealing tube by opening the valve, the sealing tube is filled and dilated with uid under pressure and the casket is sealed automatically. Upon sealing the casket the liquid in the tank falls to a lower level B as shown in dot-dash lines The initial pressure ofthe gas is sucient so that the required pressure is obtained on the liquid after expansion of the gas in the tank and the original volume of liquid is predetermined so as to be sufficient to ll and dilate the sealing tube and to apply the desired pressure for sealing the casket. Since the air is removed from the sealing tube before it is filled with liquid, it is possible to determine the volumetric capacity of the tube and the amount of liquid originally required inthe tank 40 sufficiently accurately so that the amount of gas expansion and the fall in liquid levels during expansion may be predetermined.

Figure ll shows a modified form of sealing tube 16 which may be used in the casket of Figs. l to 9. The tube 16' may be exactly the same as that shown inV Fig. l but any cross section thereof would appear substantially as shown in solid lines in Fig. ll before liquid under pressure is supplied thereto. Like the tube 16, the sealing tube 16 is shaped to sealingly engage the bottom wall of the endless channel 8 throughout the length thereof. Whenthe tube 16 is supplied with liquid under pressure, the top portion thereof moves upwardly into sealing engagement with the lid as shown in dot-dash lines in Fig. 1l. Unlike the sealing tube 16, the tube 16' is provided withV at least one endless or continuous rib 55 which engages the lids throughout the margin of the casket.V The width of the rib56 throughout its length is less than that of the sealing tube 16 and preferably less than that of the internal passage therein so that the pressure per unit area between each lid and the sealing tube is greater Vthan that of the liquid in the tube. By providing ribs on one or more faces of the sealing tube and reducing the area of the sealing tube in engagement with the casket, it is possible to obtain higher sealing pressure with lower liquid pressure in the tube and, therefore, to obtain an effective seal with low liquid pressure.

The liquid-receiving cavity or passage in the sealing .tube or gasket is preferably so disposed that the rubber of the tube is notsubjected to any tensile stresses when the gasket is dilated to seal the casket. As shown in solid lines in Fig. 11, the sealing tubes 16 in the normal unstressed condition prior to sealing of the casket has an internal cavity or 4passage 116,of substantially arcuate cross section disposed with its concave side up. When fluid under pressure is supplied to the passage y116, the ratio of its width to its height is decreased andthe top portion of the sealing tube 16 above said passage is moved away from the 4channel 8 toward the casket lid. The toggle-like action during straightening of said top portion presses the sealing tube against the sides of the channel 8 and tends to increase the width of the passage 116. Before said passage decreases in width, said top portion must be bowed upwardly a substantial distance. As shown in dot-dash lines in Fig. 2, the clearance between the casketlid and the casket body is small enough so that, after sealing tube 16 is dilated and subjected to the desired sealing pressure and after the topportion of the tube is in sealing engagement with the lid, all portions of the tube are under compression and no portion is subjected to tensile stresses which might hasten deterioration of the sealing tube or failure of the seal.

Figs. 12 to 14 show a modied form of casket which is substantially identical with that employed in the firstdescribed embodiment except for the mechanism used to supply liquid to the sealing tube and to maintain said pressure. In this embodiment of the invention an accumulator in the form of a tank or reservoir is supported in horizontal position inside the lid 10 by a clamp 42. which is rigidly connected to the uppermost central portion of the lid near. the channel 15 and the face 12 as shown in Fig. 12. Like the tank 40, the tank 40 is adapted to contain a liquid and a gas trapped or compressed above s-aid liquid for maintaining a pressure on the liquid. A liquid conduit 41 has one end opening to the tank below the surface of the liquid and its opposite end connected to a-connection 19 similar to the connection 19. Said inlet connection communicates directly with the uppermost central portion of the sealing tube preferably substantially at the center. of the arched portion 18 so that gas or lliquid may tlow from the top of the sealing tube into the tank 40'.

In order to provide the pressure required to seal the casket properly, air under pressure may be supplied to the top of the tank 40 or liquid under pressure may be r supplied to the sealing tube 16 so as to compress the air already in the tank 40. It is preferable to provide suitable means for supplying liquid under pressure to the sealving tube so that any air in the tube may be removed therefrom and forced into the reservoir 40 when the casket is sealed.

As herein shown, the sealing tube 16 offFigs. 11 to 14 is provided with an yair-tight inlet connection 47 which comprises an inlet conduit 48 having an externally threaded end which projects through an opening 49 in the bottom portion of a molding member 5. The eX- ternally threaded end is screwed into an internally threaded valve body 50 which cooperates with a ball 51 to form a non-return valve or check valve 52 accessible from outside the casket. The outermost end of the valve body is threaded to receive a cap 53 and a sealing ring S9 which seals the inlet connection 47 indenitely and prevents any leakage of fluid into or out of the sealing tube. The conduit 48 is provided with a shoulder 54 for engagement with the margin of the opening 49 and is held in fixed -position by means of a nut 55 which is screwed onto the threaded end of the conduit between the shoulder 54 and the check valve 52.

It will be understood that the walls of the casket body shown herein are imperforate and are welded to the upper portions of the members 5` or otherwise sealed throughout their lengths to prevent any leakage from inside the marginal chamber formed by the molding members 5 to the interior of the casket. By sealing this marginalV chamber, any vair which may vleak into said cham- 9 ber throu'ghrthe key openings-'29 or'th'e' opening 495isv prevented' fromf entering the casket interior. However; it will be understood that the openings 29 and 49'ma'yV be sealed in any suitable manner to prevent leakage of air into the'moldingmembers S.

Asfh'erein shown,v the inlet conduit 48 is connectedto thefsea'lin'g'tube 16below thejunction of the rectangular portion 17 and the arched'portion 18. The sealing tube has' a: substantially cylindrical portion 57 which projects througha: circular openingA 58 in the bottom of thel channely 8 and" which receives' the upper end of the conduit 48; The tub'e' engages the marginal portion of the' openin'g58 toprovide an air-tightseal and-is bonded or otherwisef connected' to the conduity 48 so that an effective seal? is providedy which will maintain liquid in the' tube 16 indefinitely.v

Whe'nit is desiredto'lsealthe casket of Figs. 12 to-'14, the cap153 isrernoved and a suitableliquid under' pressurelis supplied through the inlet connection 47' to the sealirlg'tub'e. 16A in anysuitable manner. Any g'a'sVA in the tube, being lighter. than the liquid being supplied thereto, willrise to the top'of the intermediate pOrtiOnISfan'dLWill befo'rced by the liquid into' thel reservoir 40"asthe tube is filled? with.' liquid. The liquid is supplied until the liquid level within the'reservoir 40 is above the open end of'the conduit 41 and the gas above'the: liquid is compressed to the desiredpressure. The pressure is predetermined and is sufficient to' maintain an eifectiveseal. The supply of' liquid is then discontinued and the' cap 53: isi replaced. The check valve 5I prevents lossI of liquid while the cap s-b'eingscr'ewed onto the'valve body 50. The? cap is. rotated sufficiently to force the sealing n'ngi 59 tightly" against the'- valve body and to provide'a leakpr'oof connection.

The expansion tank 40' is' adapted to receive the' air or. other" gases: in the sealing tube 16 before sealing of the casket'and eliminates the need for using a vacuum pump or for using a valve to maintain a vacuum in the sealing tube until the casket is sealed. When liquid under pressure is:l supplied to the sealingftube, any' air in the tube willbe forced into' the expansion tank.' It'will be understood that' the expansion-tank 40 may beeinployedlinthe casketof'Figs. 1 to 9 Valong'with the tank 405inwhich case the use of a vacuum pump-would be unnecessary and the tank 40 would be connected to the upper part of the intermediate portionl to receive'the airin the sealing tube. The tank 40' may be located? in the' lid and. connected to the sealingv tube 1'6 of- Fi'gsll to. 10 substantially'inthe same manner as shown invF-ig. 13.

Thesealing tubes described above m'ay be'made of any suitable flexible and deformable plastic material( but' are preferably made of` a pliable or rubber-like' material whicliiwill maintain its pliability indefinitely. A silicone rubber composedsubstantially. entirely of dimethylsiliconoxygen4 linkages or other diorganyl-silicon-oxyg'en linkages would. be preferred; but a` sealing' tube made of neoprene or butyl rubber' wouldv also give goodresults.

Any. suitable liquidmayy be employed'in the sealing tube 16or 16'.. However, it is usually desirable totemploy a liquid' having a freezing point lower' than thatof water` and preferably` containing a suitable'- self-'sealing compound. Glycerine, various vegetable oils, and other liquidswhich will not .react4 withor dissolve the material ofthe sealing tubewould be suitable.

The gasemployedin the reservoir 40 or 40' may be ain, nitrogen; freon or anyl other suitable gasfw'hich is relatively'inert or compatible with the liquid employed in tliesealingtube or may be a mixture of gas so lo'n'g as itisncapable of maintaining a pressure on theliqu'id` T-li'el reservoir' 40" is' connected by a' detachable' union to the crossv member" 18' of th'esealing tube andl may' be connected to'A the member 18E after' the .lid 1'0 is closed.

It will be-under'stood that' the-sealing tube of the present'LV invention doesnot substantially interfere with conventional interior' decorations which would be; tacked to the casket. Such decorations or upholstery are not' illustrated'infFigs'.- 5' and 6 of the drawings; but the' wooden portions ot` the casket to which they are tacked are sho'v'vn'; As sliown'lherein thel cask'etf has suitable anges around its periphery for receiving wooden stripsz 64i and 65 t'o whichtheupholstery is attached. The abutting portions off theA lids 9' and 10" are formed with arched a'ngest for receivingarched strips 66 which ser-ve the same purpose.

FiguresV 1-5 to .18 show a casleetfwbich'is identical with the casketoff Figs. l to 9' but has' amodified formo'f pressure supply means for supplying liquid to the'sealin'g tube 16 a'nd" hasdifferent rneans for attaching the upholstery-'tothe casket. Unlike thefirst described casket, the'fcasleet of Fig-s. lr5`to`18`may'be opened after sealing pressure li'as beenappliedrto thel tube-16.

Itis often desirable to provide a'casket whichmaybe sealed for purpose'slof shipping a corpse or to prevent odors-from leaving the' casket a'ud'whichy may be opened thereafter for a'= funeral service or for other reasons. Where the casket' must be opened the casket of Figs. l to' 91 is unsuitable sinceitI is notr intended to be opened afterithas on'ce been sealed. In order to permit openin'g'y ofthe'casket after' sealing, the means for supplying pressure'tothe liquid orother iiuidi in the sealing'tube should-belcap'able of reducing'A the pressure in said tube at any time. The pressure supplyy means may be a hydraulicpumpor'anyother suitable. sourceof fluid under pressure'=\.vhich'ma'y be operated by` meansac'cessible from outside the casket, For example, the' pressure supply means may bea hydraulicv pump having a pistonV rod which mayfbefmoved byy a tool or' othery suitable vmeans from outside' of the casket.

As'bestshownin Figs. 15 and 16, the sealing tube- 16 is connected; to a pressurizable reservoir 40a'in' the form of' a? hydraulic'- pump having a cylinder 70, a piston- 71 sl'idablyv mounted* therein, and anexpansion tank 140 in=fluidcommunication with'the'interior of saidcylind'er. The end ofi the cylinder is closed by an annular disc 72 which is internally'threaded to receive-an annular fitting 73-having an axial bore 74. The inlet connection `1-9 of'' the' sealing' tube' 16' isconnected to onel end of a copper tube 75 extending between the-sealing tube and thepressurizable reservoir. As herein shown, the other endof the tube 75 is connected to the'itting 73 and is brazed thereto to for'm an airtight connection. The cylinder projectsv through av circular opening' in the endwall Z and is' externally threaded near said end wall to-receive internally and external metal sealing collars 76 and 77 which are internally threaded to screw onto-said cylinder. Annular sealing washers-7S and 79 of asu'itabl'efelastic rubber-like material are provided on opposite sides' of the wall 2 atthe margin of the circular opening-in said end wall for preventing leakage of air a'rou'ndthe cylinder 7U/'into or out of the casket. The collars'- 76 andI 77- may be screwed towards each other tocompresssa'idfwashers tightly' against said end wall to provideani effective seal. The-outer collar 77 is provided with? an, annular hub'portion 80 coaxial withthe cylinder? 70fa'nd projecting axially' into the end of said cylinder. Said hub portion is-provided with a cylindrical bor'efwhichp'rovid'es a bearing for a screw 81 that projects axially-intothe cylinder 70. The piston 71 is w'eld'ed'- t'o" atubular piston rod' 82 coaxial' with the cylinder? 70l and?4 extending from the piston rod toward the collar 77. i The-'outer end portion of the piston rod is internally'thre'aded' tok fitv the externally threaded portion 83lof'tl1e screw'Sl so that the pistonV may be moved axially when the screw is rotated. Any suitable means voir 49a.

may be 'provided to prevent rotation of'the piston "rod with the screw. As herein shown, the piston rod is provided with an axial slot 84 and the cylinder 70 is drilled and tapped to receive a radial screw 85 which projects into said slot to prevent rotation of the piston. A locking nut 89 is provided for preventing rotation of the screw.

Forwardly of the radial screw 85 the cylinder 70 has a cylindrical bore 86 of circular cross section in which the piston reciprocates. A cup-shaped rubber-like piston seal 87 is provided on the front face of the piston 71 to prevent leakage of liquid from the chamber S8 at the front end of the seal around the circumference of the piston. The piston and the piston seal have external cylindrical surfaces with a diameter substantially the Isame as that of the bore 86 so that there is a minimum clearance, and leakage from the cylinder is eectively prevented.

The screw 81 has an integral externally cylindrical head 90 mounted for rotation in a cylindrical bore in the hub 80 that is concentric to the cylinder 70 and has an integral annular flange 91 with a diameter greater than that of said bore which provides a shoulder for engaging the hub portion 80 to limit movement of the screw axially away from the chamber 8S. The cylinder 70 is provided with an axial bore 92 extending from the rear end of the cylinder to an annular shoulder 93 beyond the front surface of the flange 91. An annular `stop-plate 94 with an external diameter to fit in the bore 92 and an internal diameter less than the external diameter of the ange 91 is mounted in said bore against the shoulder 93 to limit movement of the screw 81 axially toward the chamber 88.

The axial actuating screw 81 may be rotated in either direction by a suitable tool or in any vother suitable manner to cause axial movement of the piston 71 toward or away from the chamber 88 so as to increase or decrease the volume of said chamber. As herein shown, the actuating screw is rotated by means of ahandcrank having a hexagonal portion 96 engageable with the Vhead 90 of the actuating screw. The head 90 is provided with a hexagonal recess 97 of a size to receive the crank portion 96 so that the screw may readily be rotated in either direction by inserting said crank portion into said recess and rotating the handcrank manually. An air vent 98 may be provided in the cylinder 70 to permit the ow of air into and out of the annular chamber 99 at the rear of the piston 71 when the screw is rotated to move said piston.

The hydraulic pump 40a may have exactly the same relative size and shape as shown in Fig. 16, which is drawn to scale, but it will be understood that equivalent pumps of different shape which function in a substantially dilerent manner may also beV suitable including rotary pumps, sylphon or bellows-type pumps, or the like.

As herein shown, the expansible chamber 88 of the hydraulic pump communicates with a closed chamber 110 of the expansion tank 140 through a port or opening 111 at the top of the cylinder 70. The expansion tank is Welded ,to the cylinder of the pump so as to provide an air-tight connection between the tank and the cylinder. The chamber 110 contains air or other suitable gas which is compressed when the piston 71 is advanced to seal the casket, the chamber 88 containing sul`n`cient liquid` at all times to prevent the entry of air into the tube 75 from the expansion tank.

lf desired the expansion tank 140 may be omitted and an expansion tank of the type shown at 40 in FigsflZ and 13 may be employed to receive any air which may remain in the sealing tube 16. Where the tank 40' is not employed to remove air from the sealing tube,v substantially all of the air in the tube may be removed bethe pressurizable reserfore the tube Vis connected to In'the casket shown herein, air-tight connectionsare provided at 19 and 73 so that liquid may flow from the chamber 88 of the hydraulic pump to the sealing tube 16 and so that a sealing pressure may be maintained yindennitely on said liquid to maintain an effective lcasket seal. Before the pump is connected to the sealing tube 16 at one of the connections 19 and 73, the sealing tube is filled with liquid at atmospheric pressure to remove substantially all of the air from the tube. A vacuum pump may be employed for this purpose, but good results can usually be obtained by lling the tube with liquid underv atmospheric pressure in such a way as to force the air out of the tube. The chamber 110 of the expansion tank is lled with air at atmospheric pressure and the chamber 88 and the tube 75 are filled with liquid at atmospheric pressure to exclude air from the tube beforeV the sealing tube 16 is connected to the pump chamber 88'. After assembly the amount of air inthe system is negligible. Since the liquid level in the reservoir 40a is substantially above the connection 73 and is adjacent the port 111 when the piston .'71 is in its normal retracted position, air cannot pass from the chamber to the tube 75 even when the piston is fullyretracted, and the air is trapped in said chamber and compressed when the piston is advanced. After sealing of the casket the compressed air in the expansion tank maintains pressure on the liquid in the chamber 88 and in the sealing tube 16 under varying temperatures and permits changes inthe volume or weight of liquid in the seal- Ving tube which may occur due to temperature changes,

distortion of the casket during handling, `variation in'th'e clearances between the casket body and casket lid,or other causes. Since a substantial pressure `on the sealing tube 16 can force` liquid out of the tube toward the res-V ervoir 40a and further compress the lgas in the expansion tank 140, the vsealing tube can act 'as a safety valve lmeans to prevent the buildup of dangerously high pres- 'sure in the casket due to fermentation or the like which might push out the sides of the casket. By preselecting the volume of liquid and air and the displacement of the pump, a predetermined pressure may be applied to the ,sealing tube or gasket 16 when the casket is sealed. So

long as the pressure in the casket remains below said predetermined pressure, the sealing tube will maintain an eective seal, and when the pressure exceeds said predetermined pressure the tube will deform and relieve the excessive pressure. Thercompressed gas in the expansion tank maintains the pressure on the liquid in the tube sothat an air-tight seal is again elected after the exces-` sive pressure in the casket is relieved.

It will be apparent that the pressurized reservoirs 40 and 40 function like the reservoir 40a and its expansion tank 140 as yieldable means to maintain the pressure o n the liquid in the sealing tube while permitting changes in the liquid volume in said tube. Because of the yieldable pressurizing means an etective seal can be main- 'tained indeiinitely, and it is unnecessary to stretch the rubber-like material of the sealing tube to vmaintain the pressure on the incompressible liquid in said tube. It is .preferable to place the sealing tube under radial cornpression whenV the casket is sealed to prevent deterioration -of the tube which may be caused by stretching and'to prevent leakage of the liquid from the tube. An expan- 'sion tank or other yieldable means permits a casket design recess 97 and is rotated in one direction, the ange 91 thrusts against the hub 90 and the threads of the portion 83"mesh with those of the piston rod 82 to advance said rod toward the' chamber 88. lf the handcrank is rotated in the opposite direction, the flange 91 thrusts against the stop-plate 94 and the meshing screwthreadslretract 13 the piston rod. After the handcrank is removed from the recess 97, the friction between the threads ofthe screw 81 and thepiston rod holds the piston 71 in its adjusted position until the screw 81 is-again rotated. A goodfsealing pressure may be maintained for an indenite period of time after the piston 71 has been advanced to seal the 'casket or the pressure may be removedat any time by rotating the handcrank to retract the piston 71.

Then sealing cup 87 is capable of preventing leakage from theY chamberrSS for an indefinite period oftime, but it will be understood that various other seals may also be' used. The expansible and'contractible chamber 88, for example, might be lined with a flexible and collapsible elastic impervious bag or the like, the interior of which communicates with the interior of the sealing tube16.

Although a casket incorporating the hydraulic pump 40a may be rendered theft-proof, for example by employing the theft-proof latches of Figs. l to 9 and by roundingthe recess 97 with'a drill or otherwise making it diflicult tov rotatethe screw 81, such casket-preferably should be of a type which can easily be opened by authorized persons after the casket has been sealed for shipping a corpse or for other reasons. It is therefore preferable to replace the theft-proof locking mechanisms 21 With conventional latches where the pump 40a is employed and it is desired to open the casket after it has been sealed.

However, by properly designing the locking bolts 22 andthe keepers 23, the casket may be opened after a medium sealing pressure is applied. For example, by providing amaterial at 3S of the proper hardness, it is possible to provide a casket which may be sealed by advancing'the piston of the pump 40a apredetermined distanceto obtain a medium sealing pressure insufficient to'substantially deform the material 38, which may thereafterbe opened by retracting the piston, and which may be permanently sealed by advancing the pistona' greater amount toobtain a higher sealing pressure sui'cient to deform the material 3S and to prevent subsequent opening of the casket.

It will be apparent from Figs. 17` and 18 that the casket shown therein has a body andlids substantially the same as'those shown in Figs. 1 to 9 but that different flanges are'provided for holding the upholstery. As shown, the casket body and the lids are the same asl those of the first-mentioned casket except that the marginal flanges receiving the wooden strips 64 and 65 are'replaced by continuous marginal flanges 100 and 101, respectively.

The sheet ofv material forming the moldingS andthe marginal channel 8 extends inwardly beyond each side wall 1 and each end wall 2 to form the flange 101 which extends throughout the periphery of the casket. The sheet material forming the lids 9 and 10 likewise forms the ange 100 which is above and coextensive with the ange 101 when the lids are closed. The flange 100' is shaped the same as the ange 101 but is pointed inthe opposite direction as shown in Fig. 17.

The ange 101 extends a short distancehorizontally and is turned toward the bottom wall 3 of the casket to provide a continuous marginal channel'102 preferably of substantially uniform cross section throughout its length and extending throughout the upper periphery of the receptacle formed by the casket walls 1, 2, and 3 at the upper edge thereof. The portion of the flange 101 adjacent its outer edge 103 is bent outwardly toward the casket wall so as to provide a restricted entrance 104. The distance from the edge 103' to the casket wall and the width of the entrance 104 is less than the largest internal diameter of the marginal channel 101 throughoutv the length of said channel.

A continuous hollow tube'105 of elastic andVY pliable rubber-like material and of a size to t in the channel 102 may be inserted into the channel and will be held against movement out of the channel by the edge 103. As herein shown, the flanges 100 and 101 containing the 14 tubes-105 are arcuately curved in cross section. andare substantially semi-cylindrical, and each" tube 105'is1 circular in cross-section and hasan external diameter greater than the width of the entrance 104Ysothat it` must'` be compressed to pass through suchy entrance.

Suitable upholsteryor other decorative material may be attached'to-the tube 105" so astobe supported and-held in place by the flange `orf101. As herein-shown, the casketis provided with 1.1pholstery/106l of conventional type having thin sheets107 and-1080i Woveny fabric. or other` suitable materialforming the oppositek outer surfaces of theupholstery. These sheets enga'geleach'- other at the tube'1'05 and are wrapped around the tube and' attached thereto'by stitching-'109i The tube 105` and. the two sheets 107 and 108'are adapted to fit4 tightlyinLthe marginal channel 102 throughoutlthelengthvthereofi as indicated in Figs. 17 and'18 and'have a combined diameter when removedv from theVv channel substantially equal to the maximumv diameter; of the channel. The width ofthe narrow entrance 104 tothemarginal-channel is sufcient to permit Vmovement therethrough of the. tube 105 and the sheetsattached' thereto1when' the tube is compressed'radially but issuiciently' smallso thatthe upholsteryis-'rmly held-in place lwhen the tube is. in the channel 102i It'will be understood that only. oneof the two sheets-107' and-108need bewrapped aroundzthe tube 105 satisfactorily to attach said tube to' the'y upholstery.

It will be understood that, in accordance with. the patent statutes, variations and modifications; of. the specic'devices disclosed herein may bemade without departing from the spiritiof.thepresentwinvention.

Having described my invention, I claim:

l. In a casket having upstanding sideandtendwalls and a bottom wallforming al1-elongated generally rectangularreceptacle, a continuous-marginal channel :inthe upper surface of said receptacle extending' throughout itsperiphery, a continuous exiblevand dilatable liquid-including sealing'tube in said channel and extendingthroughout the length thereof, a rectangular lid engageable:with saidy sealing tube to provide an air-tight. sealA for said casket, means to hold said lid against said sealing'tube, means in said receptacle for increasing. they amount of liquid in said-sealing tube and the liquidzpressure therein and for maintaining the increasedliquid pressure including a reservoir for gas and liquid under pressure connected to said sealing tube and means.- accessible from outside saidV casket for controllingsaid.last-named means.

2. A casket having a main generally rectangularI body portion providing a rectangular enclosure and a lid hinged to said body portion, a hollow continuous pliable dilatable liquid-including rubber-like sealing tube `engaging said lid throughout the periphery thereof and engaging the upper marginal edge of said body portion, said'tube beingadapted to expand under increased liquid pressure and to be compressed against said lid and said body portion. to provide an air-tight seal for said casket, means; accessible from outside said casket for increasing: the. amount'. of liquid in said tube and theriiquid pressure' thereof, means for maintaining the increased liquid. pressure comprising a tank in said casket having saidliquid therein'and having a gas trapped above said liquid,.said.gas.being under pressure to maintain a sealing pressure on. the

liquid in said sealing tube, and a conduit extending from said sealing tube tolsaid` tank and terminating adjacent theV bottomof said tank below the levelof saidliquid.

3. A casket as defined in claim' 2 whereinV said tank before sealing of the casket contains suicient liquid* to till the sealing tube and to applyv said sealing. pressure and contains compressed gasunder an initial pressure considerably higher thansaid-sealing pressure and wherein valve means is provided to prevent flow of liquid from said tank to said sealing tube and to maintain said initial pressure compressing said gas until it is desired to seal the casket, said means accessible from outside the casket 15 including actuating means for operating said valve means to permit said ow of liquid whereby the compressed gas forces the liquid from the tank into the sealing tube and maintains suicient pressure thereon to provide an air-tight seal for said casket.

4. A theft-proof casket having a body portion and a lid hinged to said body portion, a continuous dilatable liquidincluding sealing tube engageable with said lid and said body portion throughout the periphery thereof for ap- V plying a uniform pressure between said lid and said body portion, locking means for limiting movement of said lid away from said body portion including a bolt and a keeper for receiving said bolt, frangible means accessible from outside said casket for moving the bolt into the keeper, means in said casket for increasing the liquid pressure within said sealing tube so as to move the lid away from the body portion the limited distance permitted by said locking means and to apply a pressure between the bolt and its keeper, said last-mentioned pressure preventing movement of said bolt out of said keeper by said frangible means, said frangible means becoming inoperative when subjected from outside the casket to a force approaching that necessary to move the bolt out 4of the keeper, and means accessible from outside said casket for controlling the liquid pressure-increase means.

5. A casket as defined in claim 4 wherein accumulator means are provided for maintaining Vsaid pressure comprising an expansion tank, said bolt having a notch therein for receiving a portion of said keeper, said notch being filled with a soft deformable material.

6. A casket as dened in claim 4 wherein accumulator means are provided for maintaining said pressure comprising an expansion tank, said tank receiving the liquid and having gas trapped above the liquid. Y

7. A casket having a main body portion and a lid hinged to said body portion, a hollow iiexible` and dilatable liquid-including sealing tube extending throughout the periphery of said body portion and engageable with said lid, said tube when subjected to internal Huid pressure being compressed against said lid and said body portion to provide an air-tight seal for the casket, means in said casket for increasing the amount of liquid in said sealing tube and for maintaining a sealing pressure on` said liquid comprising an expansion tank, a pump having a cylinder, and a piston slidably mounted in said cylinder, said tank being in uid communication with said sealing tube, and means accessible from outside said casket for operating said pump and for holding said piston in adjusted positions with respect to said cylinder.

8. A casket having a main generally rectangular body portion providing a rectangular enclosure and a lid hinged to said body portion, a hollow continuous pliable dilatable liquid including rubber-like sealing tube engaging said lid throughout the periphery thereof and engaging the upper marginal edge of said body portion, said tube being adapted to expand under increased liquid pressure and to be compressed against said lid and said body portion to provide an air-tight seal for said casket, means for maintaining the increased liquid pressure comprising a tank in said casket having said liquid therein and having a gas trapped above said liquid, said gas being under pressure to maintain a sealing pressure on the liquid in said sealing tube, and a conduit extending fromsaid sealing tube to said tank and terminating adjacent the bottom of said tank below the level of said liquid, conduit means being provided to supply liquid under pressure to said sealing tube including a non-return valve and an inlet connection accessible from outside said casket, said casket being sealed by supplying liquid under pressure through said non-return valve to the interior of said sealing tube and said tank so as to compress the gas in said tank.

9. A casket having upstanding side and end walls and a bottom wall forming a generally rectangular receptacle, a continuous marginal channel in the upper surface of said receptacle extending throughout its periphery, a pliable and dilatable liquid including sealing tube in said channel and extending .throughout the length thereof, a sectional lid including two independently movable rectangular closure members engageable with said sealing tube to provide an air-tight seal for said casket, each of said closure members being hinged to one of-the side walls, locking means on the other of saidside walls for limiting movement of said lid away from said receptacle to hold the lid in closed position closely overlying and in engagement with said sealing tube, a hollow tubular sealing member between and engaging abutting faces of said closure members, and means including a pressurizable liquid reservoir in said casket communicating with said sealing tube and said sealing member for increasing the amount of liquid in said sealing tube and the pressure thereof and for maintaining said pressure so as to prevent entry of air into the interior of said casket below and between said closure members and means accessible from outside said casket for controlling said lastnamed means, the means for maintaining pressure on said liquid comprising a reservoir for gas under pressure communicating with the interiors of said sealing tube and said sealing member.

l0. A casket having upstanding side and end walls and a Vbottom wall forming a body portion that provides an elongated generally rectangular enclosure, means providing a continuous marginal channel in the upper surface of said body portion extending throughout its periphery, a continuous flexible and dilatable liquid-including sealing tube in said channel and extending throughout the length thereof, means for closing the casket including at least one generally rectangular lid hinged to said body portion 'and engageable with said sealing tube t0 provide an air-tight seal for said casket, means to hold said lid against said sealing tube, means in said casket for increasing the amount of liquid in said tube and the sealing pressure thereof comprising a pump and means accessible from outside the casket for causing operation of said pump, and yieldable means comprising an accumulator spaced from said tube and in iiuid communication therewith for maintaining the sealing pressure on said liquid.

ll. A casket having a main generally rectangular body providing a rectangular enclosure and at least one lid hinged to said body, a hollow ycontinuous dilatable liquid-including rubber-like sealing tube engaging said lid near the periphery thereof and engaging the upper marv ginal portion of said body, said tube being constructed to be compressed by liquid pressure against said lid and said body to provide an air-tight seal for said casket, and means accessible from outside the casket for increasing the amount of liquid in said tube and the liquid pressure inV said tube including yieldable means in said casket spaced from and communicating with said tube for maintaining the increased pressure on said liquid while permitting changes in the volume or weight of liquid in said tube, said yieldable means including a reservoir containing a gas under pressure.y

References Cited in the file of this patent UNITED STATES kPATENTS 500,809 Lakin July 4, 1893 534,166 Louden et al. Feb. 12, 1895 1,005,547 Hollister Oct. 10, 1911` 2,527,084 Smith Oct.` 24, 1950 2,533,828 McEwan Dec. l2, 1950 

